<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
    <title>ShellCheck: SC1055 – You need at least one command here. Use `true;` as a no-op.</title>
    <link rel="stylesheet" href="css/bootstrap.min.css" />
  </head>
  <body style="margin-left: auto; margin-right: auto; max-width: 800px">
    <h1>SC1055 – ShellCheck Wiki</h1>
    <a href="https://github.com/koalaman/shellcheck/wiki/SC1055">See this page on GitHub</a>
    <p style="display: none"><a href="index.html">Sitemap</a></p>
    <hr />
    <h2 id="you-need-at-least-one-command-here-use-true-as-a-no-op">You need
at least one command here. Use <code>true;</code> as a no-op.</h2>
<h3 id="problematic-code">Problematic code:</h3>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="SC1055.html#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">submitbug()</span> <span class="kw">{</span></span>
<span id="cb1-2"><a href="SC1055.html#cb1-2" aria-hidden="true" tabindex="-1"></a>  <span class="co"># </span><span class="al">TODO</span><span class="co">: Implement me</span></span>
<span id="cb1-3"><a href="SC1055.html#cb1-3" aria-hidden="true" tabindex="-1"></a><span class="kw">}</span></span></code></pre></div>
<h3 id="correct-code">Correct code:</h3>
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="SC1055.html#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="fu">submitbug()</span> <span class="kw">{</span></span>
<span id="cb2-2"><a href="SC1055.html#cb2-2" aria-hidden="true" tabindex="-1"></a>  <span class="co"># </span><span class="al">TODO</span><span class="co">: Implement me</span></span>
<span id="cb2-3"><a href="SC1055.html#cb2-3" aria-hidden="true" tabindex="-1"></a>  <span class="fu">true</span></span>
<span id="cb2-4"><a href="SC1055.html#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="kw">}</span></span></code></pre></div>
<h3 id="rationale">Rationale:</h3>
<p>ShellCheck found an empty code block. This could be an empty function
as shown, a loop with an empty body, or similar.</p>
<p>Sh/bash does not allow empty code blocks. Insert at least one
command. If you don't want the block to do anything, <code>true</code>
(aka <code>:</code>) is a good no-op.</p>
<h3 id="exceptions">Exceptions:</h3>
<p>None</p>
<h3 id="related-resources">Related resources:</h3>
<ul>
<li><a
href="https://stackoverflow.com/questions/39307615/why-cannot-i-define-an-empty-function-in-shell">StackOverflow:
Why cannot I define an empty function in shell?</a></li>
</ul>
    <hr />
    <p style='font-size: 80%'><a href="../index.html">ShellCheck</a> is a static analysis tool for shell scripts. This page is part of its documentation.</p>
  </body>
</html>


